https://www.onlyoffice.com/download-desktop.aspx
To me this looks very close to Microsoft Office. I actually think it looks cleaner, and easier to comprehend how to use. And you can not beat the price. They alos have versions for Linux, MacOSX as well as Windows. This could be the cross platform document solution you have been looking for!
Information captured directly from their website!
ONLYOFFICE Docs the most complete office suite
Build fillable PDF forms and fill them in online
Read and edit PDFs, export/import to/from PDF
Convert docs to Markdown and HTML
Turn your textbooks into e-books
Generate texts with the AI helper
